I know the topic of wheel spacers has been well-covered on various forums over the years...but I haven't seen a good enough one here yet
My question boils down to, is there a theoretical limit to how much slip-on spacer one can/should use in a performance environment so long as the studs are long enough and sufficient torque is applied to the lugnuts?
Background: 1995 Mustang GT used for track and autocross. Currently running 18x11 Hypergrams and 315/30/18 Falken RT615K+. Going to 315/30/18 Yok A052 for autocross and used 305/680/18 Michelin/Pirelli slicks for the track. I don't want to be trying to switch tires on/off wheels before track days, so I want another set of wheels. I was going to just get another set of 18x11 Hypergrams until I saw that Konig came out with some new wheels called Heliograms in 18x12. They're a +20mm offset. My current Hypergrams in 18x11 are +15mm offset. To get roughly the same backspacing as my current wheels (which are about as close to the coilover sleeve as I can run), I would need to use a 3/4" (possibly even slightly more) wheel spacer. That also begs the question of whether it's safe to stack wheel spacers to get the best possible spacing (like a 3/4" hubcentric with another 1/8 or 1/4" spacer, for example).
I think I have enough wheel stud (3.5" underhead length ARP studs). Maximum Motorsports makes slip-on spacers up to 3/4", so my takeaway is that they consider them safe enough up to 3/4" (or maybe there's not enough market for larger, I dunno). They also make great points about the CF between the hub being the primary holding factor for the wheels. I just want to be sure about the general idea of using a spacer or combination of spacers that large in a track/slicks environment before I drop $400 on a wheel to test out fitment.
My question boils down to, is there a theoretical limit to how much slip-on spacer one can/should use in a performance environment so long as the studs are long enough and sufficient torque is applied to the lugnuts?
Background: 1995 Mustang GT used for track and autocross. Currently running 18x11 Hypergrams and 315/30/18 Falken RT615K+. Going to 315/30/18 Yok A052 for autocross and used 305/680/18 Michelin/Pirelli slicks for the track. I don't want to be trying to switch tires on/off wheels before track days, so I want another set of wheels. I was going to just get another set of 18x11 Hypergrams until I saw that Konig came out with some new wheels called Heliograms in 18x12. They're a +20mm offset. My current Hypergrams in 18x11 are +15mm offset. To get roughly the same backspacing as my current wheels (which are about as close to the coilover sleeve as I can run), I would need to use a 3/4" (possibly even slightly more) wheel spacer. That also begs the question of whether it's safe to stack wheel spacers to get the best possible spacing (like a 3/4" hubcentric with another 1/8 or 1/4" spacer, for example).
I think I have enough wheel stud (3.5" underhead length ARP studs). Maximum Motorsports makes slip-on spacers up to 3/4", so my takeaway is that they consider them safe enough up to 3/4" (or maybe there's not enough market for larger, I dunno). They also make great points about the CF between the hub being the primary holding factor for the wheels. I just want to be sure about the general idea of using a spacer or combination of spacers that large in a track/slicks environment before I drop $400 on a wheel to test out fitment.